Planet with 49 total moons and a Great Red Spot that is a storm more than 400 years old

Galileo

"Sun ______" are cooler, dark spots on the sun

Belt

The time require for Earth to rotate once on its axis is one

corona

Between the orbits of Mars and Jupiter is a region of rocky objects called the ______.

sun

The Earth is tilted on its _________ at 23.5 degrees

day

The atmospheres of the gas giants are composed mainly of the element ______.

core

Magnetic storms are a result of an increase in solar wind caused by explosions called ______.

Year

The planets that are closer to the sun than Earth are Venus and _____.

Mars

Most ancient astronomers thought that all celestial objects revolved around _________.

Earth

The tendency for an object in motion to continue in a straight line is called _________.

gravity

The "Asteroid ______" is located between Mars and Jupiter

axis

The force that pulls the moon toward Earth is called _______.

prominence

The middle layer of the sun's atmosphere is the ________.

asteroid belt

The only outer planet with a solid surface is ______.

spots

The study of all physical objects beyond Earth

planet

Types of planets that are small, dense, and have rocky surfaces

hydrogen

Occurs when the shadow of one celestial body falls on another

solar

The first person to use a telescope to observe celestial bodies

satellite

Each planet and its moons form a small system. These systems combine to form the larger ______ system.

solar flares

Called the "Red Planet"

nuclear fusion

The sun's ______, which looks like a halo, can usually be seen only during an eclipse.

inertia

The sun's energy comes from the process of __________, in which hydrogen atoms form helium.

Saturn

A natural or artificial body that revolves around larger bodies like planets

terrestrial

A loop of gas that links different parts of sunspot regions is a ________.

astronomy

Planet that is famous for its spectacular rings

chromosphere

A celestial body that is in orbit around the sun

Pluto

The time required for the Earth to orbit the sun is one

Jupiter

The closest star to Earth

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